20220121212122 has 32 divisors (see below), whose sum is σ = 32988250648080. Its totient is φ = 9239521651200.

The previous prime is 20220121212113. The next prime is 20220121212143. The reversal of 20220121212122 is 22121212102202.

It can be written as a sum of positive squares in 8 ways, for example, as 5997409979521 + 14222711232601 = 2448961^2 + 3771301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20220121212094 and 20220121212103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58200158 + ... + 58546550.

Almost surely, 2^{20220121212122} is an apocalyptic number.

20220121212122 is a deficient number, since it is larger than the sum of its proper divisors (12768129435958).

20220121212122 is a wasteful number, since it uses less digits than its factorization.

20220121212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368738.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20220121212122 its reverse (22121212102202), we get a palindrome (42341333314324).

The spelling of 20220121212122 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty-two".